Simplifies removal and/or installation of rear shock spring, making it possible for the do-it-yourselfer to handle the job in their garage or shop. Works on V-Star 650/Road Star/Warrior springs. Does not work on V-Star 1100 shock springs. Note: Changes to suspension that lower motorcycles, change spring rates or affect damping can change the way your bike handles, including angles of contact when cornering. Use caution after installing these products.